Quickbooks Web Connector

We have an internal CRM portal and are looking to interface that to Quickbooks via QB Web Connector. The integration needs to be in near-real-time - This relates to customers, invoices & financial/transactional information to be exchanged between both the systems (our portal is on [url removed, login to view]). In terms of error that we are receiving, please see the attached screenshot. For more information, I'd be happy to have a call.

I was facing exactly same issue but It was my own miss. All our services are wrapped by an activator that for everyone else means the calls don't require the Service and Operation contracts. However QBWC does not like Więcej

Hi,
Having read your requirements carefully,
I became quite sure that I can accomplish the task within the time limits, reporting you at any time you prefer and keep myself updating.
Having over 5+ years experieWięcej

Hello Sir/Madam,
I hope you are having an easy week.
I am Milan Sahu from Kolkata, India. I am a .NET Quickbook Developer with 6 year+ Experience.
I am willing to do your project.
I checked your requirement and i wantWięcej

Dear Sir/Madam,
We can start immediately
RK Websoft Technologies is a software designing and development Team. We are having very experience, enthusiastic and talented team with more than 5 years of experience on .NWięcej

Hello Sir
We have experties in QB web Connector please watch the following videos also have several other projects too for QB web connector you can see our portfolio and customer feedback
Web Connector Videos
=Więcej

Hello
I have gone through your project description. I am ready to work with you as you approve me, I will start the work.
But Before start the things I need to discuss regarding the project so we will be on same Więcej

Dear, Manager.
I have read your post and think I am a suitable developer for you.
I am an expert on mobile development with more than 4 years experiences.
I am very much interested in your project .
I hope we grWięcej

Hello I have read that error and its authentication related error.Its error with you web service hosted on your server.You need to complete auth flow than it should work.Web Connector talk to web service and web servWięcej

I had a look at the error - it says authentication failed- Have you entered the correct credentials?
Please have a look at https://whyjones.com, developed for a US startup, In which we have implemented integration witWięcej

Hello,
I have 15 years of software development experience in top IT companies of USA. I am currently in India promoting my Software venture called Moreyeahs Technologies.
I have vast experience in MS Dynamics CRMWięcej

Hi,
I am interested in your project and ready to start now.I know I am new freelancer so its hard to trust
on me so just create milestone and release when job done upto your satisfaction.
Here is few wordpress Więcej

Hello,
We are happy to discuss our proposal with you.
KEY POINTS THAT MAKE US DIFFER FROM OTHERS:
~ We have 5+ years of experiences in Unity 3D, Xcode, CoCoa 2d, Phonegap and major iOS and Android developement.
~Więcej

Hey There !!
We have seen the job post of yours and very interested to start work with you as we have delivered out the similar kind of projects and we completely understand the subject of yours and what is requiredWięcej